How to use the pouchdb-promise.reject function in pouchdb-promise
To help you get started, we’ve selected a few pouchdb-promise examples, based on popular ways it is used in public projects.
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pouchdb / upsert / dist / pouchdb.upsert.js View on Github 
function upsertInner(db, docId, diffFun) {
if (typeof docId !== 'string') {
return PouchPromise.reject(new Error('doc id is required'));
}
return db.get(docId)["catch"](function (err) {
/* istanbul ignore next */
if (err.status !== 404) {
throw err;
}
return {};
}).then(function (doc) {
// the user might change the _rev, so save it for posterity
var docRev = doc._rev;
var newDoc = diffFun(doc);
if (!newDoc) {
// if the diffFun returns falsy, we short-circuit as
// an optimizationfunction upsertInner(db, docId, diffFun) {
if (typeof docId !== 'string') {
return PouchPromise.reject(new Error('doc id is required'));
}
return db.get(docId).catch(function (err) {
/* istanbul ignore next */
if (err.status !== 404) {
throw err;
}
return {};
}).then(function (doc) {
// the user might change the _rev, so save it for posterity
var docRev = doc._rev;
var newDoc = diffFun(doc);
if (!newDoc) {
// if the diffFun returns falsy, we short-circuit as
// an optimization
