Having a Typescript issue when attempting to `gran...
# helpp
Patrick Gold
10/21/2021, 11:44 PMHaving a Typescript issue when attempting to
grantDataApiAccess()api.getFunction()Fn | undefinedgrantDataApiAccessIGrantable Copy code
cluster.grantDataApiAccess(api.getFunction('GET /test')); Copy code
Argument of type 'Function | undefined' is not assignable to parameter of type 'IGrantable'.
Type 'undefined' is not assignable to type 'IGrantable'.ts(2345)t
thdxr
10/21/2021, 11:45 PMIt's because technically it can come back undefined, if you know for sure it can't try this
thdxr
10/21/2021, 11:45 PM Copy code
cluster.grantDataApiAccess(api.getFunction('GET /test')!);thdxr
10/21/2021, 11:45 PMnote exclamation mark at the end
p
Patrick Gold
10/21/2021, 11:48 PMI see - makes sense. My linter will definitely object to this. perhaps wrapping it in an undefined check beforehand
t
thdxr
10/21/2021, 11:55 PMThe exclamation should assert it's not null
p
Patrick Gold
10/21/2021, 11:57 PMright, my linter rules disallow non-null assertion. I’m cool just adding a check before setting even if’s obviously set
Patrick Gold
10/21/2021, 11:58 PMGiving this a try since I probably want to eventually grant multiple functions access:
Copy code
// Grant access to the cluster from the Lambda function
const clusterAccessRoutes = ["GET /test"];
clusterAccessRoutes.forEach(route => {
const fnHandler = api.getFunction(route);
if (fnHandler) {
cluster.grantDataApiAccess(fnHandler);
}
});4 Views