Connect to multiple data sources at once using Flask-GraphiQL
I'm building a GraphQL API that connects to two different databases. I'm trying to create a GraphQL interface using Flask-GraphQL but it appears I can only bind a single SQLAlchemy session to the app at once via the context variable:
from flask import Flask
from flask_graphql import GraphQLView
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker, scoped_session
from schema import schema
# connect to database sources
engine1 = create_engine('sqlite:///db1.sqlite3')
engine2 = create_engine('sqlite:///db2.sqlite3')
session1 = scoped_session(sessionmaker(bind=engine1))
session2 = scoped_session(sessionmaker(bind=engine2))
# create app and add GraphiQL route
app = Flask(__name__)
app.add_url_rule('/graphql', view_func=GraphQLView.as_view(
'graphql',
schema=schema,
graphiql=True,
get_context=lambda: {'session': session1}
))
Is there any way to connect to more than one data source at once or is this not possible?
flask graphql graphene-python flask-graphql graphene-sqlalchemy
asked Nov 29 '18 at 0:37
Johnny MetzJohnny Metz
1,17811136
add a comment |
I'm building a GraphQL API that connects to two different databases. I'm trying to create a GraphQL interface using Flask-GraphQL but it appears I can only bind a single SQLAlchemy session to the app at once via the context variable:
from flask import Flask
from flask_graphql import GraphQLView
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker, scoped_session
from schema import schema
# connect to database sources
engine1 = create_engine('sqlite:///db1.sqlite3')
engine2 = create_engine('sqlite:///db2.sqlite3')
session1 = scoped_session(sessionmaker(bind=engine1))
session2 = scoped_session(sessionmaker(bind=engine2))
# create app and add GraphiQL route
app = Flask(__name__)
app.add_url_rule('/graphql', view_func=GraphQLView.as_view(
'graphql',
schema=schema,
graphiql=True,
get_context=lambda: {'session': session1}
))
Is there any way to connect to more than one data source at once or is this not possible?
flask graphql graphene-python flask-graphql graphene-sqlalchemy
asked Nov 29 '18 at 0:37
Johnny MetzJohnny Metz
1,17811136
add a comment |
I'm building a GraphQL API that connects to two different databases. I'm trying to create a GraphQL interface using Flask-GraphQL but it appears I can only bind a single SQLAlchemy session to the app at once via the context variable:
from flask import Flask
from flask_graphql import GraphQLView
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker, scoped_session
from schema import schema
# connect to database sources
engine1 = create_engine('sqlite:///db1.sqlite3')
engine2 = create_engine('sqlite:///db2.sqlite3')
session1 = scoped_session(sessionmaker(bind=engine1))
session2 = scoped_session(sessionmaker(bind=engine2))
# create app and add GraphiQL route
app = Flask(__name__)
app.add_url_rule('/graphql', view_func=GraphQLView.as_view(
'graphql',
schema=schema,
graphiql=True,
get_context=lambda: {'session': session1}
))
Is there any way to connect to more than one data source at once or is this not possible?
flask graphql graphene-python flask-graphql graphene-sqlalchemy
asked Nov 29 '18 at 0:37
Johnny MetzJohnny Metz
1,17811136
I'm building a GraphQL API that connects to two different databases. I'm trying to create a GraphQL interface using Flask-GraphQL but it appears I can only bind a single SQLAlchemy session to the app at once via the context variable:
from flask import Flask
from flask_graphql import GraphQLView
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker, scoped_session
from schema import schema
# connect to database sources
engine1 = create_engine('sqlite:///db1.sqlite3')
engine2 = create_engine('sqlite:///db2.sqlite3')
session1 = scoped_session(sessionmaker(bind=engine1))
session2 = scoped_session(sessionmaker(bind=engine2))
# create app and add GraphiQL route
app = Flask(__name__)
app.add_url_rule('/graphql', view_func=GraphQLView.as_view(
'graphql',
schema=schema,
graphiql=True,
get_context=lambda: {'session': session1}
))
Is there any way to connect to more than one data source at once or is this not possible?
flask graphql graphene-python flask-graphql graphene-sqlalchemy
flask graphql graphene-python flask-graphql graphene-sqlalchemy
asked Nov 29 '18 at 0:37
Johnny MetzJohnny Metz
1,17811136
asked Nov 29 '18 at 0:37
Johnny MetzJohnny Metz
1,17811136
asked Nov 29 '18 at 0:37
Johnny MetzJohnny Metz
1,17811136
asked Nov 29 '18 at 0:37
Johnny MetzJohnny Metz
1,17811136
asked Nov 29 '18 at 0:37
Johnny MetzJohnny Metz
1,17811136
1,17811136
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53530180%2fconnect-to-multiple-data-sources-at-once-using-flask-graphiql%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53530180%2fconnect-to-multiple-data-sources-at-once-using-flask-graphiql%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
